permaculture

[Ray Cirino <cobanation@yahoo.com>]

Rocket stoves changed my life when Ianto Evans showed me them back in 2002. 
I've had great success using the concept and evolving it into many things 
including ovens and hot tubs and soon a distiller and sweat lodge rock heater 
to bring back lodges in areas they were banded because of fire. My ovens have 
no sparks that could cause forest fires even during winds up to fifty MPH 
blowing right into the intake. There's still much to be accomplished with 
this technology and living in a rocket junkyard area doesn't hurt. Always 
remember though fire should be the second choice to the sun.
 
The Great Challenges we now face as a species present the very opportunities 
that are giving birth to Ecological, Psychological, and Spiritual 
Sustainability.


________________________________
 From: Lawrence London <lfljvenaura@gmail.com>
To: permaculture <permaculture@lists.ibiblio.org> 
Sent: Thursday, August 29, 2013 7:12 PM
Subject: [permaculture] Fwd: Rocket Stove - a resource that may be all you 
need. I am building one of these.
 

I recently found and posted about a website with instructions on
building a highly functional rocket stove. This info answers many
questions the average stove builder will have, i.e.
aeration, where, how much, etc. This resource may be all one will need
to design and build one that works really well, small, medium or large
(proportions will need to be adhered to
as size increases).

The definitive article on rocket stove design and construction with
downloadable video and drawings.

[I am in the process of building one of these stoves; it is the essence of
simplicity.]

Rocket stoves use twigs to cook food quickly, efficiently

Mark Frauenfelder <http://boingboing.net/author/mark_frauenfelder_1> at
3:02 pm Thu, Jun 26, 2008

http://boingboing.net/2008/06/26/rocket-stoves-use-tw.html

When I visited Kelly Coyne and Erik Knutzen of Homegrown Evolution
<http://www.homegrownevolution.com/>
http://www.homegrownevolution.com/  last week they showed me the rocket
stove they made in their backyard. Theirs is quite fancy because it is
made of bricks. They sometimes use their rocket stove to fry a meal in a
skillet.

The rocket stove was invented about 10 years ago by Dr. Larry Winiarski
at the Aprovecho Research Center in Oregon. It consists of an
elbow-shaped combustion chamber (usually made from metal cans)
surrounded by insulating material (often a large can filled with sand).
It uses twigs for fuel, so it's ideal for areas where the trees have
been depleted.

Here's a video from the Aprovecho Research Center that shows how to make
a rocket stove
<http://www.aprovecho.org/web-content/media/rocket/rocket.htm>.
http://www.aprovecho.org/web-content/media/rocket/rocket.htm

    200806261447.jpg
    <http://www.boingboing.net/filesroot/200806261447.jpg> Here are the
    first 3 of 10 rocket stove principles
    <
http://www.bioenergylists.org/stovesdoc/Still/Rocket%20Stove/Principles.html
>,

http://www.bioenergylists.org/stovesdoc/Still/Rocket%20Stove/Principles.html
    by Larry Winiarski.

    1.) Insulate, particularly the combustion chamber, with low mass,
    heatresistant materials in order to keep the fire as hot as possible
    and not toheat the higher mass of the stove body.

    2.) Within the stove body, above the combustion chamber, use an
    insulated,upright chimney of a height that is about two or three
    times the diameterbefore extracting heat to any surface (griddle,
    pots, etc.).

    3.) Heat only the fuel that is burning (and not too much). Burn the
    tips ofsticks as they enter the combustion chamber, for example. The
    object is NOTto produce more gasses or charcoal than can be cleanly
    burned at the powerlevel desired.

Illustration from In the Wake <http://www.inthewake.org/b1cooking.html>,
http://www.inthewake.org/b1cooking.html  a cool website on various
simple off-the-grid tools.






Larry Winiarski's Rocket Stove Principles

Dean Still, April 2002

http://www.bioenergylists.org/stovesdoc/Still/Rocket%20Stove/Principles.html

Dear Friends,

I was typing up Larry's latest simple stove principles for Aprovecho's

newsletter, "News From Aprovecho", (two to three times a year, $30/year,

describes activity, I'm editing number 59) and thought I'd send it along.

Reflecting on the Rocket I might point out a interesting point: no secondary

air. I've tried adding heated secondary air into the top end of the internal

chimney above the combustion chamber but haven't noticed an improvement in

amount of smoke or in fuel efficiency. I ended up thinking that enough

primary air is left at the top of the combustion zone anyway. Adding air may

just reduce temperatures. I'll test this further with better equipment.

The Rocket stove is trying to create supportive conditions for complete

initial combustion which seems to pretty much work when the right amount of

fuel is introduced. The added draft created by the insulated chimney above

the fire pulls in lots of air, which like a fan, makes a hotter, vigorous

burn.

Anyway, here are Larry's principles of stove design:

Best,

Dean

Rocket Stove Principles

Dr. Larry Winiarski

Technical Director

Aprovecho Research Center

Apro@efn.org

1.) Insulate, particularly the combustion chamber, with low mass, heat

resistant materials in order to keep the fire as hot as possible and not to

heat the higher mass of the stove body.

2.) Within the stove body, above the combustion chamber, use an insulated,

upright chimney of a height that is about two or three times the diameter

before extracting heat to any surface (griddle, pots, etc.).

3.) Heat only the fuel that is burning (and not too much). Burn the tips of

sticks as they enter the combustion chamber, for example. The object is NOT

to produce more gasses or charcoal than can be cleanly burned at the power

level desired.

4.) Maintain a good air velocity through the fuel. The primary Rocket stove

principle and feature is using a hot, insulated, vertical chimney within the

stove body that increases draft.

5.) Do not allow too much or too little air to enter the combustion chamber.

We strive to have stoichiometric (chemically ideal) combustion: in practice

there should be the minimum excess of air supporting clean burning.

6.) The cross sectional area (perpendicular to the flow) of the combustion

chamber should be sized within the range of power level of the stove.

Experience has shown that roughly twenty-five square inches will suffice for

home use (four inches in diameter or five inches square). Commercial size is

larger and depends on usage.

7.) Elevate the fuel and distribute airflow around the fuel surfaces. When

burning sticks of wood, it is best to have several sticks close together,

not touching, leaving air spaces between them. Particle fuels should be

arranged on a grate.

8.) Arrange the fuel so that air largely flows through the glowing coals.

Too much air passing above the coals cools the flames and condenses oil

vapors.

9.) Throughout the stove, any place where hot gases flow, insulate from the

higher mass of the stove body, only exposing pots, etc. to direct heat.

10.) Transfer the heat efficiently by making the gaps as narrow as possible

between the insulation covering the stove body and surfaces to be heated but

do this without choking the fire. Estimate the size of the gap by keeping

the cross sectional area of the flow of hot flue gases constant. EXCEPTION:

When using a external chimney or fan the gaps can be substantially reduced

as long as adequate space has been left at the top of the internal short

chimney for the gasses to turn smoothly and distribute evenly. This is

tapering of the manifold. In a common domestic griddle stove with external

chimney, the gap under the griddle can be reduced to about one half inch for

optimum heat transfer.
_______________________________________________
permaculture mailing list
permaculture@lists.ibiblio.org
subscribe/unsubscribe|user config|list info|make a donation toward list 
maintenance:
http://lists.ibiblio.org/mailman/listinfo/permaculture
message archives:  https://lists.ibiblio.org/sympa/arc/permaculture/
Google message archive search:
site: lists.ibiblio.org/pipermail/permaculture [searchstring]
Permaculture Institute USA http://permaculture.org
Avant Geared  http://www.avantgeared.com
>From ecoenzo@gmail.com  Fri Aug 30 16:43:33 2013
Return-Path: <ecoenzo@gmail.com>
X-Original-To: permaculture@lists.ibiblio.org
Delivered-To: permaculture@lists.ibiblio.org
Received: by lists.ibiblio.org (Postfix, from userid 20217)
        id 375CAE93FC; Fri, 30 Aug 2013 16:43:33 -0400 (EDT)
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on 
mailman1.ibiblio.org
X-Spam-Level:
X-Spam-Status: No, score=-1.8 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,URIBL_BLACK
        autolearn=no version=3.3.1
Received: from mail-wg0-f41.google.com (mail-wg0-f41.google.com 
[74.125.82.41])
        by lists.ibiblio.org (Postfix) with ESMTP id A8488E93FA
        for <permaculture@lists.ibiblio.org>;
        Fri, 30 Aug 2013 16:43:28 -0400 (EDT)
Received: by mail-wg0-f41.google.com with SMTP id b12so16102wgh.4
        for <permaculture@lists.ibiblio.org>;
        Fri, 30 Aug 2013 13:43:27 -0700 (PDT)
MIME-Version: 1.0
X-Received: by 10.180.185.97 with SMTP id fb1mr3932365wic.61.1377895407732;
        Fri, 30 Aug 2013 13:43:27 -0700 (PDT)
Received: by 10.216.240.74 with HTTP; Fri, 30 Aug 2013 13:43:27 -0700 (PDT)
Date: Fri, 30 Aug 2013 15:43:27 -0500
Message-ID: 
<CAG4wBSqk8tbETwV+Ej+Cx9Z0H=hvLYLXWGNKbQ_P69ew=1Mu9g@mail.gmail.com>
From: Alan Enzo <ecoenzo@gmail.com>
To: CumberlandGreenRiverBC-list@meetup.com,
        Transition-Nashville-list@meetup.com, permaculture@lists.ibiblio.org
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.9
Subject: [permaculture] Radio-wave-treated water - This could be the end of
 Monsanto, GMOs, chemical fertilizers, herbicides, etc.!
X-BeenThere: permaculture@lists.ibiblio.org
X-Mailman-Version: 2.1.9
Precedence: list
Reply-To: permaculture <permaculture@lists.ibiblio.org>
List-Id: permaculture <permaculture.lists.ibiblio.org>
List-Unsubscribe: <http://lists.ibiblio.org/mailman/listinfo/permaculture>,
        <mailto:permaculture-request@lists.ibiblio.org?subject=unsubscribe>
List-Archive: <https://lists.ibiblio.org/sympa/arc/permaculture>
List-Post: <mailto:permaculture@lists.ibiblio.org>
List-Help: <mailto:sympa@lists.ibiblio.org?subject=HELP>
List-Subscribe: <http://lists.ibiblio.org/mailman/listinfo/permaculture>,
        <mailto:permaculture-request@lists.ibiblio.org?subject=subscribe>
X-List-Received-Date: Fri, 30 Aug 2013 20:43:33 -0000

Interesting!  This could be the end of Monsanto, GMOs, chemical
fertilizers, chemical herbicides, etc.!

Radio-wave treated water?

I'm not sold on the science yet, but the effects sound remarkable

http://www.independent.ie/business/irish/wave-goodbye-to-global-warming-gm-and-pesticides-29525621.html

Anyone else out there heard about this?

Best,

Enzo
--
Alan Enzo, Ph.D., M.B.A.

Education & Consultation in:
Permaculture Design
Ecological Economics
Sustainable Business Development
<http://PermacultureEducation.com> <http://PermacultureEducation.com>
PermacultureEducation.com
*"Though the problems of the world are increasingly complex, the solutions
remain embarrassingly simple."*  - Bill Mollison
**